Vertically adjustable shelf bracket and channel support



Nov. 24, 1964 E. w. BERGSTROM VERTICALLY ADJUSTABLE sum BRACKET ANDCHANNEL SUPPORT Fild March 5, 1962 IN VEN TOR.

United States Patent VERTTQALLY ADJUSTABLE SHELF BRACKET AND tJHANNELSUPPORT Evar Wilhelm Bergstriim, Mossgatan 4, Nassjo, Sweden Filed Mar.5, 1962, Ser. No. 177,501

Claims priority, application Australia, Mar. 17, 1961,

2,647/61 1 Claim. (Cl. 248-243) This invention relates to supportdevices suitable for supporting shelves, racks and the like.

The device, which closely resembles the construction described in USpatent specification No. 2,902,242, cornprises an arm having a T-shapedend part, and a channelshaped bar having, in its base wall, at least oneaperture and, from each side wall, a side flange projecting inwardlytowards the opposite side wall. The bar is adapted, in use to be fixedin an upright position. The flange of the T-shaped part fits closely inthe bar between the side flanges and base Wall of the bar to restrictmovement of the arm away from, transversely to the longitudinal axis ofthe bar channel and the web of the T-shaped part has a projectionfittable into the aperture in the bar to prevent the bar sliding, inuse, downwardly along the channel.

There is a slight risk of the arm in such a device being pivotedupwardly with the flange of the. T-shaped part as fulcrum, and if thisis done the projection is moved out of the aperture with the result thatthe arm is free to slide down the channel in the bar under the weight ofthe load on the arm.

In order to prevent this upward pivoting of the arm, the projection ofthe arm of a device according to the invention has a hook-like partextendable through the aperture to engage the opposite side of the basewall to the T-shaped part.

Like the device described in the above-mentioned specification there isadvantageously a cut-away part in the web between the flange and theprojection of the T-shaped part such that by pivoting the arm upwardlyand sidewardly a side channel wall enters the cut-away part to permitthe flange to move into a position in which it is approximately parallelto the channel axis so that the arm can be removed from the bar withoutsliding the arm to an end of the bar.

The scope of the invention is defined by the appended claim; and how itmay be performed is hereinafter particularly described with reference tothe accompanying drawings in which:

FIG. 1 is a side elevation of a device according to the invention andFIG. 2 is a plan View of the same device.

The device comprises a bar 1 and an arm 2. The bar 1, when the device isin use, is fixed in an upright position either by being fixed to a wallor by a fitting secured to the floor. The arm 2 may be used to supportshelves, racks and the like.

The bar 1, which is channel-shaped, has in its base wall 3 a series ofrectangular apertures 4 and a plurality of screw holes 5 by means ofwhich it can be fixed to a wall. A side flange 6 projects from each sidewall '7 inwardly towards the opposite side wall 7. The bar has, on theopposite side of the base wall 3 to the channel, two side ribs 8 whichproject perpendicularly a short distance from the base wall 3.

3,158,349 Patented Nov. 24., 1964 The arm 2 is constituted by a T-bar;the Web 9 of the bar tapers from an end part 10 towards a free end 11,while the flange 12 of the end part 10 has a smaller width than, and isseparated by a slot 13 from the flange of the remainder of the arm. Theweb 9 has a projection 14 fittable into an aperture 4 in the bar 1; andthe projection has a hook-like part 15 extendable through the aperture 4to engage the opposite side of the base wall 3 to the flange 12 of theend part 10. Between the flange 12 and the projection 14 of the end part10 there is a cut-away part 16, which as is described below enables thearm to be removed from the bar 1 without sliding the arm to an end ofthe bar.

When the device is to be used, the bar 1 is fixed in an uprightposition. The arm is then inserted into the bar with the flange 12parallel to the axis or side walls 7 of the bar and a side flange 6 inthe cut-away part 16. The arm is then tilted to move the other sideflange 6 into the slot 13, and turned so that the flange of the arm ismoved perpendicular to the side walls of the bar and is moved into thechannel. The flange 12 now fits closely in the bar between the sideflanges 6 and the base wall 3 of the bar and so restricts movement ofthe arm away from and transversely to the longitudinal axis of the barchannel. The arm is then slid along the bar until it is at the desiredheight, and the projection 14 is fitted in the adjacent rectangularaperture 4. The base 17 of the hook-like part 15 rests on the narrowedge of the aperture 41, while the tip 18 of the part 15 engages theopposite side of the base wall 3 to the T-shapedend part of the arm.

The hook-like part 15 prevents the arm from being pivoted upwardly withthe flange 12 as a fulcrum, and so minimises the risk of the projection14 being moved out of the aperture.

The side ribs 8 project slightly further from the base wall 3 of the barthan the hook-like part 15, and so enables the bar to be fixed in closecontact to a wall without the wall preventing the projection 14 frombeing inserted into the aperture 4.

To remove the arm from the bar the arm is moved slightly upwards untilthe projection 14 can be removed from the aperture, and is then tiltedupwardly and sidewardly to move one side flange 6 into the cut-away part16 and the opposite side flange into the slot 13. The arm can now beturned until the flange is approximately parallel with the channel axis,and in this position the arm can be removed from the bar.

What is claimed is:

A support device consisting of an arm having a web part and a T-shapedend part and a channel-shaped bar having, in its base wall, at least oneaperture and, from each side wall, a side flange projecting inwardlytowards the opposite side wall; said bar being adapted, in use, to befixed in an upright position, said T-shaped end part fitting closely inthe bar between said side flanges and base wall of the bar to restrictmovement of the arm away from, and transversely to the longitudinal axisof the bar channel, said T-shaped end part being provided with aprotruding inner edge facing said base wall and bearing thereon, and theweb of the T-shaped part having a projection fitting into the aperturein the bar to prevent the arm sliding, in use, downwardly along thechannel, said projection having a hook-like pwt extending through saidaperture to engage the opposite side of the base wall so as to preventthe arm, in use, from being pivoted :3 .5 upwardly with the flange ofthe T-shaped part as fulcrum, References Cited in the file of thispatent and there being a cut-away part in the web between the UNITEDSTATES PATENTS flange and the projection of the T-shaped part servingsimultaneously to permit, by pivoting the arm upwardly 2-,902242Befgstlom p 1, 1959 and sidewardly, a side channel wall to enter thecut-away 5 part to move the flange into a position in which it isFOREIFTITI PATENTS approximately parallel to the channel axis so thatthe 7 Great Bntam Mar. 2, 1922 arm can be removed from the bar, and toform a sharp FRANK L ABBOTT Primary Examine" angle at the protrudinginner edge of the flange of the T-shaped part. 10 CLAUDE A. LE ROY,Examiner.

